sea fort

C1579
concept

A sea fort is a fortified structure built on or near the sea, typically on artificial islands, rocks, or coastal waters, designed to defend harbors, coastlines, or strategic maritime routes.

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All labels observed (15)

Label Occurrences
fort 176
coastal fortress 40
coastal fort 25

Description generation (CDg)

The one-sentence description above was generated by prompting gpt-5.1 with the class name and this instruction.

Instruction
generate a one-sentence description for a given conceptual class.
# Response Format
Return only the sentence: "Description: [one-sentence description of the conceptional class]"
Input
Class: sea fort
Generated description
A sea fort is a fortified structure built on or near the sea, typically on artificial islands, rocks, or coastal waters, designed to defend harbors, coastlines, or strategic maritime routes.

Instances (293)

Instance Via concept surface
Richelieu’s seawall at La Rochelle maritime fortification
Svartholm Sea Fortress sea fortress
Kungsholmen Fortress coastal fortress
Drotten Fortress
linked to: Drotten Fortress (Drottningskär Citadel on Aspö)
coastal fortress
Star Fort, Matara fort
Phillaur Fort
linked to: Phillaur
fort
Ajatashatru Fort fort
Devgad Fort fort
Fort Jefferson
linked to: Dry Tortugas, Florida
coastal fortress
Stanley Fort coastal fort
Shipwreck Cove pirate stronghold
Cowes Castle coastal fortress
Vengurla Fort fort
Jhansi Fort fort
Madan Mahal Fort fort
Fort Hamilton coastal artillery fort
Ahmednagar Fort fort
Landguard Fort
linked to: Felixstowe
coastal fort
Fort Larned fort
Fort Charlotte fort
Fort Dansborg
linked to: Tranquebar
fort
Christiansø
linked to: Christiansø (nearby island fortress)
fortified island
Ahmednagar Fort
linked to: Ahmednagar
fort
Fort Christina fort
Inchgarvie fortified island
Fort Amsterdam fort
San Pedro de la Roca Castle coastal fortress
Fort McHenry
linked to: Pickersgill
fort
Fort Mercer fort
Portland Castle coastal fortress
Forte da Ponta da Bandeira coastal fort
Fort Macquarie
linked to: Fort Macquarie (demolished)
fort
Russian coastal fortifications at Sveaborg naval fortress
Kacha Qila fort
Fort Fredensborg fort
Pakka Qila fort
Fort Regent fort
Castle Cornet coastal fortress
Fort St. Catherine
linked to: St. George's Parish
coastal fort
Oscarsborg Fortress coastal fortress
Cove Fort fort
Junagarh Fort fort
Fort of Santa Catarina coastal fortress
Fort McHenry
linked to: McHenry
fort
Fort Chambly fort
Fort St. John fort
Fort St. Jago coastal fort
Fort Amsterdam coastal fortress
Fort William fort
Fort of Nossa Senhora da Encarnação fort